"Very interesting tour"
We had a tour for two on Saturday morning. Тhe tour was scheduled at 8 am (fortunately the time was moved to 10 o’clock, because 8 is still really early). At this time nothing was happening because the city is still asleep.
The good lady, who had guided us, began with Sofia's brief history and then discussed many subtleties. When we asked her questions that interested us, she always had an answer. She had also a very extensive knowledge and spoke relatively slow with a very pleasant tone.
We would recommend the tour to anyone who is interested in history of Sofia. It was the only tour that was offered and the only that we have found (unfortunately there is no sightseeing buses in Sofia, which rides through the city and explains to the visitors the history of the town. So, this tour was our only option to learn something about the history of Sofia).